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Salesforce JavaScript Developer I Practice Exam

Salesforce JavaScript Developer I Practice Exam


About Salesforce JavaScript Developer I Practice Exam

The Salesforce Certified JavaScript Developer I exam is suitable for candidates with the knowledge, skills, and experience in developing front-end and/or back-end JavaScript applications for the web stack. These skills can be applied to any framework and are not mobile or device specific.


The certification consists of two parts - (These credentials can be earned in any sequence)

  • The JavaScript Developer I proctored multiple-choice exam - The exam focuses only on JavaScript. 
  • The Lightning Web Components Specialist superbadge - It covers the hands-on Lightning Web Component development skills.


Who should take the exam?

The Salesforce Certified JavaScript Developer I exam is suitable for candidate using the JavaScript language in one or more frameworks to develop front-end and/or back-end applications. The candidate can design, develop, and test solutions that are performant, maintainable, and re-usable. The candidate should be able to use JavaScript-specific design patterns for programming, and can combine JavaScript with CSS, HTML, and other markup languages.


The Salesforce Certified JavaScript Developer I is intended for Salesforce partners, customers, and employees who work with JavaScript and also have knowledge, skills, and experience with the Lightning Component Framework and developing Lightning Web Components (LWCs).


Job Roles

Typical job roles that align to the Salesforce Certified JavaScript Developer I are as follows:

  • JavaScript programmer
  • Salesforce developer
  • Full stack developer
  • Web application developer
  • Front end developer
  • Software/backend developer
  • Support engineer
  • Technical Product/Project Manager
  • UI/UX Engineer


Exam Details

  • Total Questions: 60 multiple-choice/multiple-select questions, and up to five non-scored questions
  • Exam Duration: 105 minutes
  • Passing score: 65%
  • Registration fee: USD 200 (plus applicable taxes)
  • Retake fee: USD 100 (plus applicable taxes)
  • Prerequisite: None


Course Outline

The Salesforce JavaScript Developer I Exam covers the following topics - 

Domain 1 - Understanding Variables, Types, and Collections (23%)

  • Ability to write code to create variables and initialize them correctly, given a scenario.
  • Ability to utilize strings, numbers, and dates effectively, for a given a business requirement.
  • Ability to demonstrate awareness of type coercion and its effects, for a given a scenario.
  • Ability to distinguish truthy or falsey evaluations, for a given a specific scenario,
  • Ability to demonstrate data manipulation with arrays, for a given a list of data,
  • Ability to demonstrate how to operate the JSON object, for a given a JSON response, 


Domain 2 - Understanding Objects, Functions, and Classes (25%)

  • Ability to locate the best function implementation, for a given a business requirement.
  • Ability to apply fundamentals of object implementation to solve the business requirement, for a given a business requirement.
  • Ability to apply fundamentals of class implementation to solve the business requirement, for a given a business requirement.
  • Ability to give examples of how to use the module, for a given a JavaScript module,
  • Ability to give examples of how to use the decorator, for a given a JavaScript decorator,
  • Ability to analyze the variable scope and the execution flow, for a given a block of code


Domain 3 - Understanding Browser and Events (17%)

  • Ability to analyze utilize Events, event handlers and propagation, for a given a business requirement.
  • Ability to evaluate and manipulate the DOM, for a given a business requirement.
  • Ability to utilize the Browser Dev Tools to investigate code behavior, for a given a scenario.
  • Ability to utilize browser specific APIs, for a given a scenario and requirements. 


Domain 4 - Understanding Debugging and Error Handling (7%)

  • Ability to handle errors properly, for a given a scenario, 
  • Ability to use the console and breakpoints, for a given code to be debugged. 


Domain 5 - Understanding Asynchronous Programming (13%)

  • Ability to apply asynchronous programming concepts, for a given a scenario.
  • Ability to use event loop and event monitor or determine loop outcomes, for a given a scenario.


Domain 6 - Understanding Server Side JavaScript (8%)

  • Ability to infer which Node.js implementation is a good solution, for a given a scenario and requirements.
  • Ability to infer which Node.js CLI command is a good solution, for a given a scenario and requirements, 
  • Knowledge of the core Node.js modules and given requirements, infer which Node.js library/framework is a good solution.
  • Ability to distinguish which Node.Js Package Management solution is the most fitting, for a given a scenario and requirements.


Domain 7 - Understanding Testing (7%)

  • Ability to determine where the test is ineffective and modify it to make it more effective, for a given block of code and the associated Unit Test.


What do we offer?

  • Full-Length Mock Test with unique questions in each test set
  • Practice objective questions with section-wise scores
  • In-depth and exhaustive explanation for every question
  • Reliable exam reports evaluating strengths and weaknesses
  • Latest Questions with an updated version
  • Tips & Tricks to crack the test
  • Unlimited access

What are our Practice Exams?

  • Practice exams have been designed by professionals and domain experts that simulate real-time exam scenario.
  • Practice exam questions have been created on the basis of content outlined in the official documentation.
  • Each set in the practice exam contains unique questions built with the intent to provide real-time experience to the candidates as well as gain more confidence during exam preparation.
  • Practice exams help to self-evaluate against the exam content and work towards building strength to clear the exam.
  • You can also create your own practice exam based on your choice and preference 

100% Assured Test Pass Guarantee

We have built the TestPrepTraining Practice exams with 100% Unconditional and assured Test Pass Guarantee! 

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